Thanks for the information. I went ahead and changed the NULL values using an SQL statement when nobody responded right away. I miss the old style forums for devnet, but I guess some people like the new format, just like Windows 8 :).
The article you mentioned is for pre v5.x, so v4.x and below is no longer supported. In any case, I looked at the prices for Kentico 8 and they've definitely went up. Having only two websites and being a not-for-profit, we need to be cost conscious. At the time, we were only allowed to use commerical products, but now that has changed and may need to look into open source CMS packages next year.